scholarly journals Design and Numerical Simulation of a Ball Cutting Type Energy Absorber Device

2021 ◽  
Vol 1802 (4) ◽  
pp. 042076
Author(s):  
Zhiqing Hu ◽  
Liming Guo ◽  
Yuheng Zhang
Keyword(s):  
Numerical Simulation ◽  
Energy Absorber

scholarly journals Impact Loads on the Occupant under the Protection of an Inversion Tube Energy Absorber during a Helicopter Crash

2018 ◽  
Vol 167 ◽  
pp. 03009
Author(s):  
Yunhua Luo ◽  
Mengqi Wang ◽  
Tao Yan ◽  
Lingjie Wang
Keyword(s):  
Numerical Simulation ◽  
Vertical Direction ◽  
Impact Loads ◽  
Vertical Acceleration ◽  
Energy Absorber ◽  
Occupant Protection ◽  
Occupant Injury ◽  
Energy Absorbing ◽  
The Impact ◽  
Head Neck

The objective of this paper is to investigate the impact loads on the occupants’ head, neck, and spine under the protection of an inversion tube energy absorber during a helicopter crash landing. Due to the high vertical acceleration, the head, neck and spine are the most vulnerable parts of a body, so that an energy absorber is needed to dissipate the kinetic energy of the occupant and the seat to minimize the impact loads. In this paper, an inversion tube was adopted as an energy-absorbing device. The occupant injury conditions were evaluated by a numerical simulation. The result indicates that the impact loads on occupant’s head, neck and spine are below the regulated thresholds under the protection of the energy absorber when the helicopter crash at a speed of 12.81m/s in vertical direction. As a consequence, the design of the occupant protection system has been proven reliable.

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake

Numerical simulation of pulsatile blood flow in the human left ventricle

2007 ◽  
Vol 55 (S 1) ◽  
Author(s):  
W Schiller ◽  
K Spiegel ◽  
T Schmid ◽  
H Rudorf ◽  
S Flacke ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Blood Flow ◽  
Left Ventricle ◽  
Pulsatile Blood Flow ◽  
Human Left Ventricle
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